CN104811274A - Method and apparatus for transmitting a data block in a wireless communication system - Google Patents
Method and apparatus for transmitting a data block in a wireless communication system Download PDFInfo
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- CN104811274A CN104811274A CN201510188481.8A CN201510188481A CN104811274A CN 104811274 A CN104811274 A CN 104811274A CN 201510188481 A CN201510188481 A CN 201510188481A CN 104811274 A CN104811274 A CN 104811274A
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- 238000004891 communication Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000006116 polymerization reaction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
- H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
- H04L1/0008—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length by supplementing frame payload, e.g. with padding bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
- Radio Transmission System (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
The present invention relates to a method and apparatus for transmitting a data frame in a wireless communication system. A method for transmitting a data block in a wireless communication system comprises the following steps; determining a plurality of data interfaces, wherein each data interface is represented by the number of orthogonal frequency division multiplexing (OFDM) code elements used for each receiver transmitting a corresponding data block; determining the maximum data interval among the plurality of data interfaces; generating a plurality of filling data blocks corresponding to a plurality of receivers; and transmitting the plurality of filling data blocks to the plurality fo receivers. The step of generating a plurality of filling data blocks comprises steps of determining an object length of each receiver according to each filling data block; generating a data block of each receiver; and generating the filling data blocks from the data blocks according to the maximum data interval and the object length.
Description
Present patent application is the divisional application of following application for a patent for invention:
Application number: 201080060526.9
The applying date: on November 4th, 2010
Denomination of invention: for generating in a wireless communication system, transmitting and the method and apparatus of receiving data frames
Technical field
The present invention relates to for generating in a wireless communication system, transmitting and the method and apparatus of receiving data frames, and more specifically, relate to the method and apparatus for generating, transmitting and receive the Frame with the new form proposed.
Background technology
Such as in IEEE 802.11, the wireless communication system support of the wireless local area network (WLAN) system (WLAN) of definition comprises the access point (AP) of the access point serving as compartment system (DS) and the Basic Service Set (BSS) of the station (STA).
According to the IEEE 802.11 of the international standard as WLAN, in medium plan (MAC) layer, deal with data in the data cell being called Medium Access Control (MAC) Protocol Data Unit (MPDU).Here, in order to increase the efficiency of MAC layer for the speed of physics (PHY) layer, IEEE 802.11 has proposed a kind of method of being polymerized multiple MPDU, to allow to process be polymerized MPDU within the physical layer in single data cell.The MPDU be polymerized is called as A-MPDU.
Therebetween, recently, actively carry out for for using the research from/to multiple receiving terminal method of transceiving data simultaneously in the same transmission period of multichannel and multi-user's multiple-input and multiple-output (MU-MIMO).
Summary of the invention
[technical problem]
The invention provides the method and apparatus for generating, transmitting and receive the Frame with new data frame form in a wireless communication system.
Present invention also offers for generating, transmitting and the method and apparatus of receiving data frames, transmit in the wireless communication system of data to multiple receiving terminal in the same transmission period simultaneously, allow the time span of the Frame transmitted to each in described multiple receiving terminal identical.
According to ensuing detailed description of the present invention, above and other object of the present invention, feature, aspect and advantage will be understood and become clearer.And, can it is easily understood that objects and advantages of the present invention realize by the unit of illustrating in claim and combination thereof.
[technical scheme]
In an aspect, a kind of method for generating Frame in a wireless communication system comprises: generate at least one first subframe; Generate at least one second subframe; The Frame of described first and second subframes is comprised with generation.Described first and second subframes comprise the length information of medium plan (MAC) protocol Data Unit (MPDU) that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind ofly to comprise for the method for transmit data frames in transfer equipment in a wireless communication system: generate the Frame comprising at least one first subframe and at least one the second subframe; This Frame is transmitted with to receiving terminal.Described first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind ofly to comprise for the method for receiving data frames in receiving terminal in a wireless communication system: receive from transmitting that terminal transmits and comprising the Frame of at least one first subframe and at least one the second subframe; With the ACK frame transmitted to this transmission terminal for this Frame.Described first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind of device for generating Frame in a wireless communication system comprises: the first frame generator, for generating at least one first subframe; Second frame generator, for generating at least one second subframe; With the 3rd frame generator, for generating the Frame comprising described first and second subframes.Described first and second subframes comprise the length information of medium plan (MAC) protocol Data Unit (MPDU) that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind of device for transmit data frames in the transfer equipment of wireless communication system comprises: frame generator, for generating the Frame comprising at least one first subframe and at least one the second subframe; With frame delivery unit, for transmitting this Frame to receiving terminal.Described first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind of device for receiving data frames in the receiving terminal of wireless communication system comprises: frame receiving element, for receiving from transmitting that terminal transmits and comprising the Frame of at least one first subframe and at least one the second subframe; With frame delivery unit, for transmitting the ACK frame being used for this Frame to this transmission terminal.Described first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In another aspect, a kind of method for transmission block in a wireless communication system, comprise: determine multiple data break, each data break is represented by the number each receiver being transmitted to OFDM (OFDM) code element that respective data blocks uses; Determine the maximum data interval among described multiple data break; Multiple padding data block is generated for multiple receiver; Transmit described multiple padding data block with to described multiple receiver, the step of the multiple padding data block of wherein said generation comprises, for each padding data block: the target length determining each receiver; Generate the data block being used for each receiver; Come to generate padding data block from this data block according to this maximum data interval and this target length.
In another aspect, a kind of equipment for transmission block in a wireless communication system, comprising: memory; And processor, couple with this memory, and be configured to for: determine multiple data break, each data break comprises and transmits for each receiver the number of OFDM (OFDM) code element that respective data blocks uses; Determine the maximum data interval among described multiple data break; Multiple padding data block is generated for multiple receiver; Transmit described multiple padding data block with to described multiple receiver, wherein this processor is configured to for generating described multiple padding data block, for each padding data block: the target length determining each receiver by once step; Generate the data block being used for each receiver; Come to generate padding data block from this data block according to this maximum data interval and this target length.
[advantageous effects]
According to the present invention, the new data frame that can use in a wireless communication system form may be provided.
In addition, according to the present invention, provide the data frame format based on existing specification, make thus to guarantee the compatibility in the transmitting-receiving of Frame.
In addition, according to the present invention, in a wireless communication system, generate Frame, make the time span of Frame that transmits to each in described multiple receiving terminal in the same transmission period identical, the difference in length between making thus to solve due to Frame causes the frame occurred to repeat invalid (disabled) problem.
Accompanying drawing explanation
Fig. 1 is the figure of the structure for explaining polymerization Medium Access Control (MAC) Protocol Data Unit (A-MPDU).
Fig. 2 is the figure for explaining according to the reception of Frame receiving method really.
Fig. 3 is the figure for explaining the method for transceiving data frame and acknowledgment frame.
Figure 4 and 5 are the figure for explaining the Frame according to the embodiment of the present invention.
Fig. 6 is the figure for explaining according to the method for transceiving data frame and acknowledgment frame of the present invention.
Fig. 7 is the figure for explaining the method for generating Frame according to the embodiment of the present invention.
Fig. 8 is the figure for explaining the method for transmit data frames according to the embodiment of the present invention.
Fig. 9 is the figure for explaining the method for receiving data frames according to the embodiment of the present invention.
Embodiment
Thereafter, describe more preferred embodiments of the present invention in detail with reference to accompanying drawing, make those skilled in the art can easily realize spirit of the present invention.According to the following detailed description provided about accompanying drawing, above-mentioned purpose, feature and advantage will become obvious.In addition, when describing of the present invention, when the detailed description of the known technology associated with the present invention can unnecessarily make spirit of the present invention not know, will be omitted it and describe in detail.
Fig. 1 is the figure of the structure for explaining polymerization Medium Access Control (MAC) Protocol Data Unit (A-MPDU).
As shown in fig. 1, A-MPDU frame comprises multiple (wherein n indicates natural number) subframe.Subframe comprises delimiter, MPDU and filling field (pad).Delimiter is positioned at before MPDU, and for identifying MPDU.Gap between two starting positions that this standard is given for two continuous subframes has the size of the integral multiple of 32 bits (that is, 4 bytes).Here, use and fill field has the A-MPDU of the integral multiple becoming 32 bits size with the gap between two starting positions being allowed for two subframes.So as shown in fig. 1, last subframe does not comprise filling field.Fill the size that field can have 0 to 3 bytes.
Delimiter comprises MPDU length information, for guaranteeing the cyclic redundancy check (CRC) (CRC) of the integrality of delimiter and characterizing the distinguishing mark of this delimiter.
Fig. 2 is the figure for explaining according to the reception of Frame receiving method really.
As shown in Figure 2, the second terminal having received A-MPDU 201 shown in the Fig. 1 transmitted from first terminal transmits acknowledgment frame 203 according to preset acknowledgement strategy to transfer equipment.Here, the second terminal receives A-MPDU, and then at backward first terminal transmission block acknowledgement (ACK) frame of short interFrameGap (SIFS).Second terminal can also receive the rear of independent block ACK claim frame at it and transmit this block ACK frame to first terminal.But, in order to increase the transmission efficiency in MAC layer, the main a kind of method using transmission block ACK frame when not having independent block ACK claim frame.
Therebetween, the demand increased for the data throughout provided from single Basic Service Set (BSS) is increased recently.As the method for increasing throughput, mainly have studied multi-user's multiple-input and multiple-output (MU-MIMO) technology and multiple frequency channels technology.When using these technology, single terminal end can use multichannel or MU-MIMO by multipath from/to multiple terminal transceiving data simultaneously.So the throughput of BSS can significantly be increased.
But, when using multipath executive communication, can not perform for each path simultaneously transmitting and receive.Such as, when first terminal uses second and the 3rd channel executive communication, it may not by the 3rd channel received data while transmitting data by second channel.That is, first terminal by second and the 3rd channel transmit simultaneously data or by second and the 3rd channel receive data simultaneously.
So, use multipath transceiving data frame when multiple terminal and the length of the Frame received and dispatched by each path is different time, can go wrong when transceiving data.It is provided to describe in more detail with reference to Fig. 3.
Fig. 3 is the figure for explaining the method for transceiving data frame and acknowledgment frame.
As described in Fig. 2, receiving terminal transmission is used for the ACK frame of received Frame.So according to the length of received Frame, receiving terminal transmits in the time of ACK frame and occurs difference wherein.When multiple terminal transmits ACK frame by multipath, difference can be there is in the delivery time of the ACK frame in each path.
More specifically, as shown in Figure 3, because the time span of the Frame 301 transmitted from first terminal to the second terminal is shorter than the time span of the Frame 303 transmitted from first terminal to third terminal, so at third terminal from while first terminal receiving data frames 303, the second terminal can transmit ACK frame 305 to first terminal.So, even if the second terminal transmits ACK frame 305 to first terminal after sifs, also can clash between Frame 303 and ACK frame 305.In this case, owing to transmitting ACK frame 305 at first terminal to the second terminal while third terminal transmit data frames 303 to first terminal, so can occur that first terminal does not receive the problem of ACK frame from the second terminal.
The present invention proposes the new data frame format for solving the problem.Frame according to the present invention comprises subframe further, and it comprises the data length information as 0.Here, length information be 0 the fact mean in subframe and in fact do not comprise data.Such as, when Frame is polymerization MPDU frame, MPDU length information becomes 0, that is, MPDU length value becomes 0.That is, Frame according to the present invention comprises subframe further, allows the time span of the Frame transmitted to each in multiple terminal identical, makes thus to solve the problem.
Such as, when when the time span of the first Frame that will be transmitted by the first channel is 5, the time span of the second Frame that will be transmitted by second channel is 4, wherein MPDU length information be 0 subframe can be additionally included in the second Frame.So the time span of the first and second Frames can become identical, and the terminal receiving each in the first and second Frames can transmit ACK frame when the conflict not having frame.
Therebetween, according to the preset size in the specification of communication system, the size according to Frame of the present invention can be determined.In addition, filling field can be comprised further according to Frame of the present invention, allow the size of Frame consistent with this preset size.
Thereafter, the present invention is described in detail with reference to accompanying drawing.With reference to Figure 4 and 5, the situation that wherein Frame is polymerization MPDU (A-MPDU) is exemplarily described.
Figure 4 and 5 are the figure for explaining the Frame according to the embodiment of the present invention.
As shown in Figure 4, Frame according to the present invention comprises subframe 401 and fills delimiter 403.Here, at least one subframe and at least one filling delimiter can be comprised according to Frame of the present invention.In the diagram, n indicates natural number.
Fill delimiter 403 and comprise the length information of MPDU, CRC and distinguishing mark, similar with above-mentioned delimiter.But, because MPDU is not positioned at according to after filling delimiter 403 of the present invention, so the length information comprising the MPDU filling delimiter 403 becomes 0.That is, delimiter 403 is filled corresponding to the above-mentioned subframe with MPDU length information 0.
The number of filling delimiter 403 can be determined, make the time span to the Frame of each transmission in multiple receiving terminal in the same transmission period identical.Namely, when can determine to fill delimiter 403 number, make when by multichannel or MU-MIMO scheme in the same transmission period to each in multiple receiving terminal simultaneously transmit data frames time, the time span to the Frame of each transmission in multiple receiving terminal in the same transmission period is identical.Such as, based on the Frame with extreme length among the Frame transmitted by each channel, the number of filling delimiter can be determined.
Therebetween, the gap between the starting point of two subframes can be defined as the integral multiple of preset unit size.Such as, when cell size is 4 byte, the gap between the starting point of two subframes can be the integral multiple of 4 bytes.So the size of subframe 401 can be the integral multiple of 4 bytes.Here, fill delimiter 403 and can have said units size.When using multiple filling delimiter, the size of each in described multiple filling delimiter becomes the integral multiple of 4 bytes.
Here, the first interpolation can be comprised further according to Frame of the present invention and fill field 402.First adds filling field in subframe and can fill between delimiter.Use first to add and fill field, with the integral multiple allowing subframe and the time interval of each of filling in delimiter to become preset unit size.Filling delimiter 403 can be the subframe with MPDU length 0.As a result, use first to add filling field 402 to allow the time interval of each subframe is the integral multiple of preset unit size.
That is, when A-MPDU shown in Figure 1, fill field and be not included in last subframe.But, the first interpolation can be comprised further according to Frame of the present invention and fill field 402.The integral multiple that filling field 402 becomes preset unit size can be added by first in two subframes and the gap of filling between delimiter.In addition, the size comprising the Frame of the first interpolation filling field, subframe and filling delimiter can become the integral multiple of preset unit size.Such as, when cell size is 4 byte, first adds the size that filling field can have 0 to 3 bytes.
Therebetween, the transmission terminal of Frame can provide Frame according to following state to receiving terminal, in this condition, allows the length information of Frame to be included in independent signal field, and the receiving terminal of Frame can easily be decoded this Frame.Here, the length information of Frame that signal field comprises can be that length by adding frame to first adds the length of subframe and the value that obtains.When the MPDU length information of filling delimiter 403 is 0, the length information of the Frame that signal field comprises can not comprise the length information of filling delimiter 403.
Above-mentioned Frame processes in the physical layer transmitting terminal according to preset modulation and encoding scheme, and is sent to multiple receiving terminal by the multipath of such as multichannel or MU-MIMO.Here, when being used for transmitting the modulation of data and encoding scheme (namely to each in multiple receiving terminal, modulation and encoding scheme (MCS) rank) difference time, may be difficult to add by means of only use above-mentioned first fill field and fill delimiter, and make the time span of the Frame transmitted within the physical layer by multipath consistent with each other.Modulation and encoding scheme can change according to MCS rank.
More specifically, Frame generally processes in preset symbol units within the physical layer.Such as, when using OFDM (OFDM) scheme wherein, process and transmission in Frame OFDM symbol unit within the physical layer (such as, 4 μ s).Namely, be used for being sent to receiving terminal because polymerization MPDU processes again according to preset modulation and encoding scheme within the physical layer, even if fill field so use first to add and fill delimiter, the time span of the Frame transmitted within the physical layer by multipath also can not be consistent with this preset symbol units.
So, the second interpolation can be comprised according to Frame of the present invention and fill field 405.When according to preset modulation and encoding scheme within the physical layer transmit data frames time, the time span of the Frame in physical layer can be the integral multiple of preset unit length.Here, element length can be such as above-mentioned OFDM symbol unit, and second adds the size that filling field can have such as 0 to 3 bytes.In this case, the physical protocol data unit (PPDU) as the data processing unit of physical layer can comprise the filling field that field is filled in the first interpolation, filling delimiter, second adds filling field and physical layer.
As a result, according to the present invention, the time span of each Frame transmitted to multiple receiving terminal in the same transmission period can become identical, and the receiving terminal receiving Frame can transmit ACK frame, and does not have the conflict of frame.First adds and fills field, fills delimiter 403 and second and add and fill field 405 and can be included in a data frame, makes after they are positioned at subframe 401 successively.
Therebetween, the Frame of Fig. 5 and the Frame of Fig. 4 have identical configuration, and correspond to the Frame of Fig. 4.But in the case of figure 4, subframe 501 is by delimiter, PPDU and fill field references; But in the case of fig. 5, the first subframe 501 is represented by sub-frame block.
As shown in Figure 5, comprise the first subframe 501, first according to the Frame of Fig. 5 of the present invention and fill field 503, second subframe 505 and the second filling field 507.At least one first subframe and at least one second subframe can be wrapped according to Frame of the present invention.In Figure 5, n indicates natural number.
First subframe 501 of Fig. 5 corresponds to the subframe 401 of Fig. 4, and second subframe 505 of Fig. 5 corresponds to the filling delimiter 403 of Fig. 4.That is, the second subframe 505 can be delimiter.First of Fig. 5 fills field 503 and adds filling field corresponding to first of Fig. 4, and field 405 is filled in the second interpolation that second of Fig. 5 the filling field 507 corresponds to Fig. 4.
As mentioned above, the size of Frame can be the integral multiple of preset unit size.First fills field 503 can be called as distribution filling field, because its time interval of each being used to permission first and second subframe 501 and 505 is the integral multiple of preset unit size.In addition, the second subframe 505 can be called as empty frame, because it does not comprise MPDU, and has data length information 0.Second fills field 507 can be called as MAC filling field, makes it be different from the filling field of adding to the PPDU in physical layer.
Therebetween, although exemplarily describe with reference to Figure 4 and 5 the situation that wherein Frame is polymerization MPDU, Frame also can be included in the data of the extended formatting except MPDU provided in its first subframe.In addition, even if in this case, the second subframe, first fills field and the second filling field also can be included in this Frame.Second subframe, first fills field and the second filling field is not always included in this Frame, but can be included in a data frame to the length of Frame of each transmission in multiple receiving terminal, the preset unit size, MCS rank etc. of Frame in the same transmission period according to described above.
Fig. 6 is the figure for explaining according to the method for transceiving data frame and acknowledgment frame of the present invention.
Fig. 6 shows wherein first terminal and two channels will be used to second and each of third terminal to transmit the situation of each in the first and second Frames 601 and 603.Here, as shown in Figure 6, the first Frame 601 has the time span shorter than the time span of the second Frame 603.
According to the present invention, first terminal generates the first Frame 601 comprising and fill delimiter 403, and the first Frame 601 generated is sent to the second terminal.First terminal can generate the first Frame 601 according to the time span of the second Frame 603, fills delimiter not comprise or to comprise at least one filling delimiter.
As a result, wherein the time of the second terminal transmission ACK frame can be delayed by the length of this filling delimiter 403.So, when second and third terminal receive in the first and second frames 601 and 603 each and then after sifs transmit ACK frame time, the conflict between frame can be prevented.Therebetween, first terminal can generate the first Frame 601 comprising the first filling field 503 and the second filling field 507 further.
Thereafter, describe in detail according to the present invention for generating in a wireless communication system, transmitting and the method for receiving data frames to 6 together with Fig. 4 to 9 with reference to Fig. 7.Here, Frame can be the Frame described with reference to Figure 4 and 5, and wireless communication system can be WLAN (wireless local area network) (LAN) system.Exemplarily describe the method for generating Frame in the equipment generating Frame with reference to Fig. 7, and exemplarily describe the method for transmit data frames in the equipment of transmit data frames with reference to Fig. 8.In addition, with reference to Fig. 9, the method for receiving data frames in the equipment of receiving data frames is exemplarily described.For generating, transmitting and the equipment of receiving data frames can be the communication equipment comprising access point, the station, terminal etc., and terminal is the concept comprising access point and the station.
Fig. 7 is the figure for explaining the method for generating Frame according to the embodiment of the present invention.As shown in Figure 7, the method for generating Frame according to the present invention starts to operate (S701).
In operation (S701), the equipment for generating Frame generates at least one first subframe.
In operation (S703), the equipment for generating Frame generates at least one second subframe.Here, the first and second subframes comprise the length information of medium plan (MAC) protocol Data Unit (MPDU) comprised in the first and second sub-frames, and the length information of MPDU that the second subframe comprises is 0.Frame can be polymerization MPDU (A-MPDU) frame.In this case, the second subframe can be delimiter.
Then, in operation (S703), the equipment for generating Frame can generate at least one second subframe, makes the time span of each Frame transmitted to multiple receiving terminal in the same transmission period identical.That is, when by multichannel or MU-MIMO scheme in the same transmission period to each transmit data frames of multiple receiving terminal time, the second subframe can be generated for the equipment generating Frame, make the time span of transmitted Frame identical.
In operation (S705), generate for the equipment generating Frame the Frame comprising the first and second subframes.The time interval of each in first subframe can be confirmed as the integral multiple of preset unit size, and each the had cell size in the second subframe.Such as, cell size can be 4 bytes.
Therebetween, what can comprise that generation comprises in a data frame further according to the method for generating Frame of the present invention first fills field.Here, the first subframe and the first size sum of filling field become the integral multiple of preset unit size.That is, first is used to fill field, with the integral multiple allowing the time interval of each in the first and second subframes to become preset unit size.
In addition, the second filling field comprised in a data frame can be comprised further according to the method for generating Frame of the present invention.When according to preset modulation and encoding scheme within the physical layer transmit data frames time, the size of the Frame in physical layer can become the integral multiple of preset unit size.Here, cell size can be such as OFDM symbol unit.
Fig. 8 is the figure for explaining the method for transmit data frames according to the embodiment of the present invention.As shown in Figure 8, the method for transmit data frames according to the present invention starts to operate (S801).
In operation (S801), the equipment for transmit data frames generates the Frame comprising at least one first subframe and at least one the second subframe.Here, the first and second subframes comprise the length information of medium plan (MAC) protocol Data Unit (MPDU) comprised in the first and second sub-frames, and the length information of MPDU that the second subframe comprises is 0.That is, Frame can be polymerization MPDU (A-MPDU) frame, and the second subframe can be delimiter.
More specifically, the generation (S801) comprising the Frame of at least one first subframe and at least one the second subframe can comprise: generate the first subframe; And generate at least one second subframe, make the time span of each Frame transmitted to multiple receiving terminal in the same transmission period identical.
In operation (S803), for the equipment of transmit data frames to receiving terminal transmit data frames.In addition, the time interval of each in the first subframe can be confirmed as the integral multiple of preset unit size, and each the had cell size in the second subframe.Such as, cell size can be 4 bytes.
Therebetween, the generation (S801) comprising the Frame of at least one first subframe and at least one the second subframe can comprise: generate the first filling field comprised in a data frame.Here, the first subframe and the first size sum of filling field become the integral multiple of preset unit size.That is, first is used to fill field, with the integral multiple allowing the time interval of each in the first and second subframes to become preset unit size.
In addition, the generation (S801) comprising the Frame of at least one first subframe and at least one the second subframe can comprise: generate the second filling field comprised in a data frame.Here, when according to preset modulation and encoding scheme within the physical layer transmit data frames time, the size of the Frame in physical layer can be the integral multiple of preset unit size.Here, cell size can be such as OFDM symbol unit.
Fig. 9 is the figure for explaining the method for receiving data frames according to the embodiment of the present invention.
As shown in Figure 9, the method for receiving data frames according to the present invention starts to operate (S901).
In operation (S901), the equipment for receiving data frames receives the Frame comprising at least one first subframe and at least one the second subframe from transmitting terminal transmission.First and second subframes comprise the length information of medium plan (MAC) protocol Data Unit (MPDU) comprised in the first and second sub-frames, and the length information of MPDU that the second subframe comprises is 0.That is, Frame can be polymerization MPDU (A-MPDU) frame, and the second subframe can be delimiter.
Second subframe can be to allow identical to each time span of Frame transmitted of multiple receiving terminal in the same transmission period and subframe that is that generate.In addition, the time interval of each in the first subframe can be confirmed as the integral multiple of preset unit size, and each the had cell size in the second subframe.Such as, cell size can be 4 bytes.
In operation (S903), the equipment for receiving data frames transmits to transmitting terminal the ACK frame being used for Frame.Here, the equipment for receiving data frames can receiving data frames, and then after sifs to transmission terminal transmission block ACK frame.
Therebetween, this Frame can comprise the first filling field further.Here, the first subframe and the first size sum of filling field become the integral multiple of preset unit size.That is, first is used to fill field, with the integral multiple allowing the time interval of each in the first and second subframes to become preset unit size.
In addition, this Frame can comprise the second filling field further.Here, when according to preset modulation and encoding scheme within the physical layer transmit data frames time, the size of the Frame in physical layer is the integral multiple of preset unit size.
Therebetween, although describe the present invention at Fig. 1 in the process of 8, will readily recognize that in equipment configuration according to of the present invention for generate, transmit and receiving data frames method each operation.Will be understood that, correspond in accordance with the principles of the present invention for the assembly generating, transmit and the equipment of receiving data frames comprises for the operation generating, transmit and the method for receiving data frames comprises according to of the present invention.Here, for generating, transmitting and the equipment of receiving data frames can be the communication equipment comprising access point, the station, wireless terminal etc.
That is, the first frame generation unit is comprised for the equipment generating Frame in a wireless communication system, for generating at least one first subframe according to the embodiment of the present invention; Second frame generation unit, for generating at least one second subframe; With the 3rd frame generation unit, for generating the Frame comprising described first and second subframes, wherein said first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In addition, comprise frame generation unit according to the equipment for transmit data frames of the embodiment of the present invention, for generating the Frame comprising at least one first subframe and at least one the second subframe; With frame delivery unit, for transmitting this Frame to receiving terminal, wherein said first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
In addition, the equipment for receiving data frames according to the embodiment of the present invention comprises: frame receiving element, for receiving from transmitting that terminal transmits and comprising the Frame of at least one first subframe and at least one the second subframe; With frame delivery unit, for transmitting the ACK frame being used for this Frame to this transmission terminal, wherein said first and second subframes comprise the length information of the MPDU that described first and second subframes comprise, and the length information of this MPDU that this second subframe comprises is 0.
Therebetween, above-mentioned according to of the present invention for generating, transmitting and the method for receiving data frames realizes by computer program.The code and the code segment that configure this computer program easily can be derived by the computer programmer of this area.In addition, computer program to be stored in computer readable recording medium storing program for performing (information storage medium) and to be read by computer and run, and realizes thus according to method of the present invention.In addition, computer readable recording medium storing program for performing comprises the recordable all types recording medium of computer (the non-physical medium of such as carrier wave and the tangible medium of such as compact disk (CD), digital versatile disc (DVD)).
Although with reference to example embodiment and drawings describe the present invention, but skilled person will appreciate that, the present invention is not limited thereto, but when not departing from claim and equivalent limited range thereof, various amendment and replacement can be carried out.
Claims (14)
1., for a method for transmission block in a wireless communication system, comprising:
Determine multiple data break, each data break is represented by the number each receiver being transmitted to OFDM (OFDM) code element that respective data blocks uses;
Determine the maximum data interval among described multiple data break;
Multiple padding data block is generated for multiple receiver; With
Described multiple padding data block is transmitted to described multiple receiver,
The step of the multiple padding data block of wherein said generation comprises, for each padding data block:
Determine the target length of each receiver;
Generate the data block being used for each receiver;
Come to generate padding data block from this data block according to this maximum data interval and this target length.
2. method according to claim 1, the step of the multiple padding data block of wherein said generation comprises:
Fill by adding at least one medium plan (MAC) to this data block, generate MAC block; With
By generating padding data block to this MAC block interpolation zero or more PHY filling bit, wherein calculate the number of PHY filling bit based on this maximum data interval and this target length.
3. method according to claim 2, wherein said at least one MAC filling comprises at least one in the first filling, the second filling and the 3rd filling.
4. method according to claim 3, the step of wherein said generation MAC block comprises:
While the length of the first filling block is less than target length and the length of the first filling block is the multiple of 4 bytes, fills generate the first filling block by repeatedly adding zero or more first to data block;
While the length sum of filling the second filling block and second is equal to or less than target length, fills generate the second filling block by repeatedly adding zero or more second to the first data block;
If the length sum that the second filling block and second fill is less than target length, then generate MAC block, until the length of the 3rd filling block equals target length by repeatedly adding zero or more the 3rd filling to the second data block.
5. method according to claim 4, one of them the first filling has the length of a byte, fill the length with four bytes for one second, and one the 3rd is filled the length with a byte.
6. method according to claim 1, wherein determines this target length based on maximum data interval.
7. method according to claim 6, wherein this maximum data interval is identical for described multiple receiver.
8., for an equipment for transmission block in a wireless communication system, comprising:
Memory; With
Processor, couples with this memory, and be configured to for:
Determine multiple data break, each data break comprises the number each receiver being transmitted to OFDM (OFDM) code element that respective data blocks uses;
Determine the maximum data interval among described multiple data break;
Multiple padding data block is generated for multiple receiver; With
Described multiple padding data block is transmitted to described multiple receiver,
Wherein this processor is configured to for generating described multiple padding data block, for each padding data block by once step:
Determine the target length of each receiver;
Generate the data block being used for each receiver;
Come to generate padding data block from this data block according to this maximum data interval and this target length.
9. equipment according to claim 8, wherein this processor is configured to for generating padding data block by following steps:
Fill by adding at least one medium plan (MAC) to this data block, generate MAC block; With
By generating padding data block to this MAC block interpolation zero or more PHY filling bit, wherein calculate the number of PHY filling bit based on this maximum data interval and this target length.
10. equipment according to claim 9, wherein said at least one MAC filling comprises at least one in the first filling, the second filling and the 3rd filling.
11. equipment according to claim 10, wherein this processor is configured to for generating MAC block by following steps:
While the length of the first filling block is less than target length and the length of the first filling block is the multiple of 4 bytes, fills generate the first filling block by repeatedly adding zero or more first to data block;
While the length sum of filling the second filling block and second is equal to or less than target length, fills generate the second filling block by repeatedly adding zero or more second to the first data block;
If the length sum that the second filling block and second fill is less than target length, then generate MAC block, until the length of the 3rd filling block equals target length by repeatedly adding zero or more the 3rd filling to the second filling block.
12. equipment according to claim 11, one of them the first filling has the length of a byte, fill the length with four bytes for one second, and one the 3rd is filled the length with a byte.
13. equipment according to claim 8, wherein determine this target length based on maximum data interval.
14. equipment according to claim 6, wherein this maximum data interval is identical for described multiple receiver.
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072173A2 (en) * | 2009-12-09 | 2011-06-16 | Marvell World Trade Ltd. | Wireless communication signaling for aggregate data units |
| JP2013522949A (en) | 2010-03-11 | 2013-06-13 | エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュート | Method and apparatus for transmitting and receiving data in a MIMO system |
| US20140003415A1 (en) * | 2012-07-02 | 2014-01-02 | Qualcomm Incorporated | Systems and methods for enhanced wireless communication frames |
| US20150036673A1 (en) * | 2013-07-30 | 2015-02-05 | Qualcomm Incorporated | Systems and methods for communicating multi-destination traffic in a wireless network |
| CN103685084B (en) * | 2013-12-23 | 2016-07-27 | 北京经纬恒润科技有限公司 | A kind of method generating Frame and device |
| FR3027756B1 (en) * | 2014-10-24 | 2017-11-10 | Thales Sa | METHOD AND SYSTEM FOR PROCESSING DATA IN A TELECOMMUNICATIONS SYSTEM FOR DYNAMIC ADAPTATION TO THE QUANTITY OF DATA TO BE TRANSMITTED |
| JP6725542B2 (en) | 2015-03-06 | 2020-07-22 | ニューラコム，インコーポレイテッド | Support for additional decoding processing time in wireless LAN systems |
| US10148326B2 (en) * | 2015-07-06 | 2018-12-04 | Qualcomm Incorporated | Methods and apparatus for extended receiver processing time |
| US10193654B2 (en) * | 2015-11-30 | 2019-01-29 | Electronics And Telecommunications Research Institute | Frame transmission method and wireless communication apparatus performing the same |
| US11284301B2 (en) | 2017-04-17 | 2022-03-22 | Qualcomm Incorporated | Flow control for wireless devices |
| CN110460405B (en) * | 2018-05-07 | 2021-04-09 | 华为技术有限公司 | Service signal transmission method and device |
| DK3881464T3 (en) | 2018-11-14 | 2023-10-09 | Zte Corp | Method and device for data transmission based on hybrid automatic repeat request |
| CN113169782A (en) | 2018-12-05 | 2021-07-23 | 索尼集团公司 | Communication apparatus and communication method |
| US11496924B2 (en) * | 2019-07-02 | 2022-11-08 | Qualcomm Incorporated | Medium access control (MAC) protocol data unit (MPDU) and codeword alignment and validation |
| EP4118764A1 (en) * | 2020-03-13 | 2023-01-18 | Interdigital Patent Holdings, Inc. | Physical (phy) layer design for hybrid automatic repeat request (harq) in wireless local area network (wlan) system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7062703B1 (en) * | 2003-07-28 | 2006-06-13 | Cisco Technology, Inc | Early detection of false start-of-packet triggers in a wireless network node |
| CN1984145A (en) * | 2004-01-09 | 2007-06-20 | 株式会社东芝 | Communication apparatus, communication method and communication system |
| US20080101332A1 (en) * | 2006-10-31 | 2008-05-01 | Seongkwan Kim | Expected channel occupancy time as a wireless link metric |
| WO2009061110A1 (en) * | 2007-11-08 | 2009-05-14 | Lg Electronics Inc. | Data transmission method in wireless mesh network and a-msdu format |
| US20090262677A1 (en) * | 2008-04-18 | 2009-10-22 | Raja Banerjea | Multicast to unicast conversion system |
Family Cites Families (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6236647B1 (en) * | 1998-02-24 | 2001-05-22 | Tantivy Communications, Inc. | Dynamic frame size adjustment and selective reject on a multi-link channel to improve effective throughput and bit error rate |
| US7583623B2 (en) | 2001-03-02 | 2009-09-01 | Ofer Zimmerman | Method and system for packing management messages in a communication system |
| US7248604B2 (en) * | 2001-10-30 | 2007-07-24 | Ipr Licensing, Inc. | Throughput in multi-rate wireless networks using variable-length packets and other techniques |
| AU2003276792A1 (en) | 2002-11-08 | 2004-06-07 | Infineon Technologies Ag | A method of error control coding and decoding of messages in a packet-based data transmission system |
| KR100807466B1 (en) * | 2003-06-18 | 2008-02-25 | 니폰덴신뎅와 가부시키가이샤 | Radio packet communication method |
| KR100567821B1 (en) | 2003-09-18 | 2006-04-05 | 삼성전자주식회사 | Device and method of communicating wirelessly by using blockack mechanism |
| US20050286446A1 (en) | 2004-04-01 | 2005-12-29 | Devicescape Software Inc. | Multi channel throughput enhancement |
| JP4047836B2 (en) * | 2004-04-02 | 2008-02-13 | 株式会社東芝 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION CONTROL PROGRAM |
| US8619658B2 (en) * | 2005-09-21 | 2013-12-31 | Interdigital Technology Corporation | Method and apparatus for transmission management in a wireless communication system |
| KR100842586B1 (en) * | 2006-01-03 | 2008-07-01 | 삼성전자주식회사 | METHOD FOR TRANSMITTING OF AGGREGATED MAC MPDUs IN WIRELESS TELECOMMUNICATION SYSTEM AND THEREFOR SYSTEM |
| US7904777B2 (en) * | 2006-01-24 | 2011-03-08 | Samsung Electronics Co., Ltd. | Method and system for generating block acknowledgements in wireless communications |
| CN101018191A (en) * | 2006-02-08 | 2007-08-15 | 华为技术有限公司 | Multi-queue packet data transmission method and its system |
| CA2644139A1 (en) | 2006-03-31 | 2007-11-10 | Qualcomm Incorporated | Memory management for high speed media access control |
| US8787841B2 (en) * | 2006-06-27 | 2014-07-22 | Qualcomm Incorporated | Method and system for providing beamforming feedback in wireless communication systems |
| US8102853B2 (en) | 2006-08-09 | 2012-01-24 | Samsung Electronics Co., Ltd. | System and method for wireless communication of uncompressed video having fixed size MAC header with an extension |
| US8306060B2 (en) | 2006-11-07 | 2012-11-06 | Samsung Electronics Co., Ltd. | System and method for wireless communication of uncompressed video having a composite frame format |
| US20080130538A1 (en) * | 2006-12-05 | 2008-06-05 | Qualcomm Incorporated | Enhanced management frame aggregation in a wireless network system |
| JP4960381B2 (en) * | 2006-12-07 | 2012-06-27 | 三菱電機株式会社 | Wireless communication system, wireless terminal station, wireless base station, and wireless communication method |
| JP4284353B2 (en) | 2006-12-26 | 2009-06-24 | 株式会社東芝 | Wireless communication device |
| US20080159190A1 (en) * | 2006-12-28 | 2008-07-03 | Mediatek Inc. | Wireless Transmission Method, Apparatus, And System |
| US8064394B2 (en) | 2007-02-14 | 2011-11-22 | Telefonaktiebolaget L M Ericsson | Methods and systems for codeword to layer mapping |
| JP4525703B2 (en) * | 2007-05-15 | 2010-08-18 | ソニー株式会社 | Wireless communication apparatus, program, wireless communication method, and wireless communication system |
| JP2009010628A (en) * | 2007-06-27 | 2009-01-15 | Toshiba Corp | Radio communication apparatus and radio communicating method |
| JP5052672B2 (en) * | 2007-08-15 | 2012-10-17 | エヌイーシー ヨーロッパ リミテッド | Method of filling a WiMAX downlink frame by a base station of a WiMAX network |
| JP4996451B2 (en) * | 2007-12-28 | 2012-08-08 | 株式会社東芝 | Wireless communication apparatus, wireless communication method, and program |
| KR101481515B1 (en) * | 2008-02-21 | 2015-01-13 | 엘지전자 주식회사 | Method of transmitting and decoding control channel for data allocation in subframe structure |
| EP2106057A1 (en) * | 2008-03-25 | 2009-09-30 | Panasonic Corporation | Resource allocation size dependent transport block size signalling |
| US8204026B2 (en) * | 2008-06-23 | 2012-06-19 | Xg Technology, Inc. | Element-based method for auto-configuration of handsets by a base station in a heterogeneous MAC protocol for wireless networks |
| US8351519B2 (en) | 2008-08-15 | 2013-01-08 | Qualcomm Incorporated | Embedding information in an 802.11 signal field |
| GB2464987A (en) | 2008-11-03 | 2010-05-05 | Nec Corp | Methods for designating resource allocation |
| US20100146351A1 (en) | 2008-12-04 | 2010-06-10 | Nokia Corporation | Error correcting scheme for wireless communication |
| US8135015B2 (en) * | 2009-03-27 | 2012-03-13 | Qualcomm Incorporated | System and method of transmitting and receiving data frames |
| KR101412920B1 (en) * | 2009-08-26 | 2014-06-26 | 엘지전자 주식회사 | Method and apparatus for multiple frame transmission for supporting MU-MIMO |
| US8817698B2 (en) * | 2009-10-18 | 2014-08-26 | Intel Corporation | Device, system and method of selectively aborting reception of wireless communication packets |
| JP2013511219A (en) | 2009-11-13 | 2013-03-28 | インターデイジタル パテント ホールディングス インコーポレイテッド | Method and apparatus for realizing VHT frequency reuse for WLAN |
| CN102598557A (en) | 2009-11-13 | 2012-07-18 | 交互数字专利控股公司 | Control signaling in wireless communications |
| WO2011072173A2 (en) * | 2009-12-09 | 2011-06-16 | Marvell World Trade Ltd. | Wireless communication signaling for aggregate data units |
| KR20110082685A (en) | 2010-01-12 | 2011-07-20 | 삼성전자주식회사 | Method for generating preamble in multi-user multi-input multi-output system, data transmission device and user terminal of enabling the method |
| US8867574B2 (en) | 2010-06-02 | 2014-10-21 | Qualcomm Incorporated | Format of VHT-SIG-B and service fields in IEEE 802.11AC |
| US8743784B2 (en) | 2010-08-04 | 2014-06-03 | Qualcomm Incorporated | VHT-SIG-B field in null data packets (NDPs) |
| US20120195392A1 (en) | 2011-02-02 | 2012-08-02 | Provigent Ltd. | Predistortion in split-mount wireless communication systems |
-
2010
- 2010-11-04 BR BR112012010467-5A patent/BR112012010467B1/en active IP Right Grant
- 2010-11-04 WO PCT/KR2010/007740 patent/WO2011055990A2/en active Application Filing
- 2010-11-04 AU AU2010316045A patent/AU2010316045B2/en active Active
- 2010-11-04 MX MX2012005179A patent/MX2012005179A/en active IP Right Grant
- 2010-11-04 CA CA2779928A patent/CA2779928C/en active Active
- 2010-11-04 CN CN201080060526.9A patent/CN102696181B/en active Active
- 2010-11-04 EP EP16157708.5A patent/EP3057244B1/en active Active
- 2010-11-04 PL PL10828525.5T patent/PL2498411T3/en unknown
- 2010-11-04 DE DE112010004270T patent/DE112010004270T5/en not_active Withdrawn
- 2010-11-04 EP EP17185987.9A patent/EP3285409A1/en active Pending
- 2010-11-04 JP JP2012537816A patent/JP5707415B2/en active Active
- 2010-11-04 KR KR1020100109146A patent/KR101282346B1/en active IP Right Grant
- 2010-11-04 CN CN201510188481.8A patent/CN104811274B/en active Active
- 2010-11-04 ES ES10828525.5T patent/ES2578188T3/en active Active
- 2010-11-04 EP EP10828525.5A patent/EP2498411B1/en active Active
-
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- 2012-04-10 US US13/443,509 patent/US8446891B2/en active Active
-
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- 2013-02-04 KR KR1020130012589A patent/KR101636236B1/en active Application Filing
- 2013-04-12 US US13/862,229 patent/US8923209B2/en active Active
-
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- 2014-11-26 US US14/555,425 patent/US9949256B2/en active Active
-
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- 2015-02-27 JP JP2015038743A patent/JP6002791B2/en active Active
-
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- 2016-06-28 KR KR1020160081046A patent/KR101716261B1/en active IP Right Grant
- 2016-09-05 JP JP2016172874A patent/JP6463311B2/en active Active
-
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- 2017-03-08 KR KR1020170029283A patent/KR101780230B1/en active IP Right Grant
- 2017-09-14 KR KR1020170117554A patent/KR101853015B1/en active IP Right Grant
-
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- 2018-04-17 US US15/954,749 patent/US10499391B2/en active Active
- 2018-04-23 KR KR1020180046754A patent/KR102011051B1/en active IP Right Grant
- 2018-12-28 JP JP2018247854A patent/JP6655704B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7062703B1 (en) * | 2003-07-28 | 2006-06-13 | Cisco Technology, Inc | Early detection of false start-of-packet triggers in a wireless network node |
| CN1984145A (en) * | 2004-01-09 | 2007-06-20 | 株式会社东芝 | Communication apparatus, communication method and communication system |
| US20080101332A1 (en) * | 2006-10-31 | 2008-05-01 | Seongkwan Kim | Expected channel occupancy time as a wireless link metric |
| WO2009061110A1 (en) * | 2007-11-08 | 2009-05-14 | Lg Electronics Inc. | Data transmission method in wireless mesh network and a-msdu format |
| US20090262677A1 (en) * | 2008-04-18 | 2009-10-22 | Raja Banerjea | Multicast to unicast conversion system |
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